/* * ALSA modem driver for Intel ICH (i8x0) chipsets * * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz> * * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version * of ALSA ICH sound driver intel8x0.c . * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <asm/io.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/moduleparam.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> #include <sound/info.h> #include <sound/initval.h> MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; " "SiS 7013; NVidia MCP/2/2S/3 modems"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH}," "{Intel,82901AB-ICH0}," "{Intel,82801BA-ICH2}," "{Intel,82801CA-ICH3}," "{Intel,82801DB-ICH4}," "{Intel,ICH5}," "{Intel,ICH6}," "{Intel,ICH7}," "{Intel,MX440}," "{SiS,7013}," "{NVidia,NForce Modem}," "{NVidia,NForce2 Modem}," "{NVidia,NForce2s Modem}," "{NVidia,NForce3 Modem}," "{AMD,AMD768}}"); static int index = -2; /* Exclude the first card */ static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ static int ac97_clock; module_param(index, int, 0444); MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard."); module_param(id, charp, 0444); MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard."); module_param(ac97_clock, int, 0444); MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect)."); /* just for backward compatibility */ static int enable; module_param(enable, bool, 0444); /* * Direct registers */ enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE }; #define ICHREG(x) ICH_REG_##x #define DEFINE_REGSET(name,base) \ enum { \ ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \ ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \ ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \ ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \ ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \ ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \ ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \ }; /* busmaster blocks */ DEFINE_REGSET(OFF, 0); /* offset */ /* values for each busmaster block */ /* LVI */ #define ICH_REG_LVI_MASK 0x1f /* SR */ #define ICH_FIFOE 0x10 /* FIFO error */ #define ICH_BCIS 0x08 /* buffer completion interrupt status */ #define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */ #define ICH_CELV 0x02 /* current equals last valid */ #define ICH_DCH 0x01 /* DMA controller halted */ /* PIV */ #define ICH_REG_PIV_MASK 0x1f /* mask */ /* CR */ #define ICH_IOCE 0x10 /* interrupt on completion enable */ #define ICH_FEIE 0x08 /* fifo error interrupt enable */ #define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */ #define ICH_RESETREGS 0x02 /* reset busmaster registers */ #define ICH_STARTBM 0x01 /* start busmaster operation */ /* global block */ #define ICH_REG_GLOB_CNT 0x3c /* dword - global control */ #define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */ #define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */ #define ICH_PRIE 0x00000010 /* primary resume interrupt enable */ #define ICH_ACLINK 0x00000008 /* AClink shut off */ #define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */ #define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */ #define ICH_GIE 0x00000001 /* GPI interrupt enable */ #define ICH_REG_GLOB_STA 0x40 /* dword - global status */ #define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */ #define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */ #define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */ #define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */ #define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */ #define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */ #define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */ #define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */ #define ICH_MD3 0x00020000 /* modem power down semaphore */ #define ICH_AD3 0x00010000 /* audio power down semaphore */ #define ICH_RCS 0x00008000 /* read completion status */ #define ICH_BIT3 0x00004000 /* bit 3 slot 12 */ #define ICH_BIT2 0x00002000 /* bit 2 slot 12 */ #define ICH_BIT1 0x00001000 /* bit 1 slot 12 */ #define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */ #define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */ #define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */ #define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */ #define ICH_MCINT 0x00000080 /* MIC capture interrupt */ #define ICH_POINT 0x00000040 /* playback interrupt */ #define ICH_PIINT 0x00000020 /* capture interrupt */ #define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */ #define ICH_MOINT 0x00000004 /* modem playback interrupt */ #define ICH_MIINT 0x00000002 /* modem capture interrupt */ #define ICH_GSCI 0x00000001 /* GPI status change interrupt */ #define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */ #define ICH_CAS 0x01 /* codec access semaphore */ #define ICH_MAX_FRAGS 32 /* max hw frags */ /* * */ enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT }; enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT }; #define get_ichdev(substream) (substream->runtime->private_data) struct ichdev { unsigned int ichd; /* ich device number */ unsigned long reg_offset; /* offset to bmaddr */ u32 *bdbar; /* CPU address (32bit) */ unsigned int bdbar_addr; /* PCI bus address (32bit) */ struct snd_pcm_substream *substream; unsigned int physbuf; /* physical address (32bit) */ unsigned int size; unsigned int fragsize; unsigned int fragsize1; unsigned int position; int frags; int lvi; int lvi_frag; int civ; int ack; int ack_reload; unsigned int ack_bit; unsigned int roff_sr; unsigned int roff_picb; unsigned int int_sta_mask; /* interrupt status mask */ unsigned int ali_slot; /* ALI DMA slot */ struct snd_ac97 *ac97; }; struct intel8x0m { unsigned int device_type; int irq; void __iomem *addr; void __iomem *bmaddr; struct pci_dev *pci; struct snd_card *card; int pcm_devs; struct snd_pcm *pcm[2]; struct ichdev ichd[2]; unsigned int in_ac97_init: 1; struct snd_ac97_bus *ac97_bus; struct snd_ac97 *ac97; spinlock_t reg_lock; struct snd_dma_buffer bdbars; u32 bdbars_count; u32 int_sta_reg; /* interrupt status register */ u32 int_sta_mask; /* interrupt status mask */ unsigned int pcm_pos_shift; }; static struct pci_device_id snd_intel8x0m_ids[] = { { 0x8086, 0x2416, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */ { 0x8086, 0x2426, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */ { 0x8086, 0x2446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */ { 0x8086, 0x2486, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */ { 0x8086, 0x24c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH4 */ { 0x8086, 0x24d6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH5 */ { 0x8086, 0x266d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH6 */ { 0x8086, 0x27dd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH7 */ { 0x8086, 0x7196, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */ { 0x1022, 0x7446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */ { 0x1039, 0x7013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7013 */ { 0x10de, 0x01c1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */ { 0x10de, 0x0069, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */ { 0x10de, 0x0089, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2s */ { 0x10de, 0x00d9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */ #if 0 { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */ { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */ #endif { 0, } }; MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids); /* * Lowlevel I/O - busmaster */ static inline u8 igetbyte(struct intel8x0m *chip, u32 offset) { return ioread8(chip->bmaddr + offset); } static inline u16 igetword(struct intel8x0m *chip, u32 offset) { return ioread16(chip->bmaddr + offset); } static inline u32 igetdword(struct intel8x0m *chip, u32 offset) { return ioread32(chip->bmaddr + offset); } static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val) { iowrite8(val, chip->bmaddr + offset); } static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val) { iowrite16(val, chip->bmaddr + offset); } static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val) { iowrite32(val, chip->bmaddr + offset); } /* * Lowlevel I/O - AC'97 registers */ static inline u16 iagetword(struct intel8x0m *chip, u32 offset) { return ioread16(chip->addr + offset); } static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val) { iowrite16(val, chip->addr + offset); } /* * Basic I/O */ /* * access to AC97 codec via normal i/o (for ICH and SIS7013) */ /* return the GLOB_STA bit for the corresponding codec */ static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec) { static unsigned int codec_bit[3] = { ICH_PCR, ICH_SCR, ICH_TCR }; snd_assert(codec < 3, return ICH_PCR); return codec_bit[codec]; } static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec) { int time; if (codec > 1) return -EIO; codec = get_ich_codec_bit(chip, codec); /* codec ready ? */ if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0) return -EIO; /* Anyone holding a semaphore for 1 msec should be shot... */ time = 100; do { if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS)) return 0; udelay(10); } while (time--); /* access to some forbidden (non existant) ac97 registers will not * reset the semaphore. So even if you don't get the semaphore, still * continue the access. We don't need the semaphore anyway. */ snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n", igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA))); iagetword(chip, 0); /* clear semaphore flag */ /* I don't care about the semaphore */ return -EBUSY; } static void snd_intel8x0_codec_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct intel8x0m *chip = ac97->private_data; if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) { if (! chip->in_ac97_init) snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg); } iaputword(chip, reg + ac97->num * 0x80, val); } static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97, unsigned short reg) { struct intel8x0m *chip = ac97->private_data; unsigned short res; unsigned int tmp; if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) { if (! chip->in_ac97_init) snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg); res = 0xffff; } else { res = iagetword(chip, reg + ac97->num * 0x80); if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) { /* reset RCS and preserve other R/WC bits */ iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI)); if (! chip->in_ac97_init) snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg); res = 0xffff; } } if (reg == AC97_GPIO_STATUS) iagetword(chip, 0); /* clear semaphore */ return res; } /* * DMA I/O */ static void snd_intel8x0_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev) { int idx; u32 *bdbar = ichdev->bdbar; unsigned long port = ichdev->reg_offset; iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr); if (ichdev->size == ichdev->fragsize) { ichdev->ack_reload = ichdev->ack = 2; ichdev->fragsize1 = ichdev->fragsize >> 1; for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) { bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf); bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */ ichdev->fragsize1 >> chip->pcm_pos_shift); bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1)); bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */ ichdev->fragsize1 >> chip->pcm_pos_shift); } ichdev->frags = 2; } else { ichdev->ack_reload = ichdev->ack = 1; ichdev->fragsize1 = ichdev->fragsize; for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) { bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size)); bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */ ichdev->fragsize >> chip->pcm_pos_shift); // printk("bdbar[%i] = 0x%x [0x%x]\n", idx + 0, bdbar[idx + 0], bdbar[idx + 1]); } ichdev->frags = ichdev->size / ichdev->fragsize; } iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK); ichdev->civ = 0; iputbyte(chip, port + ICH_REG_OFF_CIV, 0); ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags; ichdev->position = 0; #if 0 printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n", ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1); #endif /* clear interrupts */ iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI); } /* * Interrupt handler */ static inline void snd_intel8x0_update(struct intel8x0m *chip, struct ichdev *ichdev) { unsigned long port = ichdev->reg_offset; int civ, i, step; int ack = 0; civ = igetbyte(chip, port + ICH_REG_OFF_CIV); if (civ == ichdev->civ) { // snd_printd("civ same %d\n", civ); step = 1; ichdev->civ++; ichdev->civ &= ICH_REG_LVI_MASK; } else { step = civ - ichdev->civ; if (step < 0) step += ICH_REG_LVI_MASK + 1; // if (step != 1) // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ); ichdev->civ = civ; } ichdev->position += step * ichdev->fragsize1; ichdev->position %= ichdev->size; ichdev->lvi += step; ichdev->lvi &= ICH_REG_LVI_MASK; iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi); for (i = 0; i < step; i++) { ichdev->lvi_frag++; ichdev->lvi_frag %= ichdev->frags; ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1); #if 0 printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n", ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2], ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port), inl(port + 4), inb(port + ICH_REG_OFF_CR)); #endif if (--ichdev->ack == 0) { ichdev->ack = ichdev->ack_reload; ack = 1; } } if (ack && ichdev->substream) { spin_unlock(&chip->reg_lock); snd_pcm_period_elapsed(ichdev->substream); spin_lock(&chip->reg_lock); } iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI); } static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id) { struct intel8x0m *chip = dev_id; struct ichdev *ichdev; unsigned int status; unsigned int i; spin_lock(&chip->reg_lock); status = igetdword(chip, chip->int_sta_reg); if (status == 0xffffffff) { /* we are not yet resumed */ spin_unlock(&chip->reg_lock); return IRQ_NONE; } if ((status & chip->int_sta_mask) == 0) { if (status) iputdword(chip, chip->int_sta_reg, status); spin_unlock(&chip->reg_lock); return IRQ_NONE; } for (i = 0; i < chip->bdbars_count; i++) { ichdev = &chip->ichd[i]; if (status & ichdev->int_sta_mask) snd_intel8x0_update(chip, ichdev); } /* ack them */ iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask); spin_unlock(&chip->reg_lock); return IRQ_HANDLED; } /* * PCM part */ static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); struct ichdev *ichdev = get_ichdev(substream); unsigned char val = 0; unsigned long port = ichdev->reg_offset; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: val = ICH_IOCE | ICH_STARTBM; break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: val = 0; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: val = ICH_IOCE; break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: val = ICH_IOCE | ICH_STARTBM; break; default: return -EINVAL; } iputbyte(chip, port + ICH_REG_OFF_CR, val); if (cmd == SNDRV_PCM_TRIGGER_STOP) { /* wait until DMA stopped */ while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ; /* reset whole DMA things */ iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS); } return 0; } static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); } static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); } static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); struct ichdev *ichdev = get_ichdev(substream); size_t ptr1, ptr; ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift; if (ptr1 != 0) ptr = ichdev->fragsize1 - ptr1; else ptr = 0; ptr += ichdev->position; if (ptr >= ichdev->size) return 0; return bytes_to_frames(substream->runtime, ptr); } static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct ichdev *ichdev = get_ichdev(substream); ichdev->physbuf = runtime->dma_addr; ichdev->size = snd_pcm_lib_buffer_bytes(substream); ichdev->fragsize = snd_pcm_lib_period_bytes(substream); snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate); snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0); snd_intel8x0_setup_periods(chip, ichdev); return 0; } static struct snd_pcm_hardware snd_intel8x0m_stream = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, .rate_min = 8000, .rate_max = 16000, .channels_min = 1, .channels_max = 1, .buffer_bytes_max = 64 * 1024, .period_bytes_min = 32, .period_bytes_max = 64 * 1024, .periods_min = 1, .periods_max = 1024, .fifo_size = 0, }; static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev) { static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; static struct snd_pcm_hw_constraint_list hw_constraints_rates = { .count = ARRAY_SIZE(rates), .list = rates, .mask = 0, }; struct snd_pcm_runtime *runtime = substream->runtime; int err; ichdev->substream = substream; runtime->hw = snd_intel8x0m_stream; err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); if ( err < 0 ) return err; runtime->private_data = ichdev; return 0; } static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]); } static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); chip->ichd[ICHD_MDMOUT].substream = NULL; return 0; } static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]); } static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream) { struct intel8x0m *chip = snd_pcm_substream_chip(substream); chip->ichd[ICHD_MDMIN].substream = NULL; return 0; } static struct snd_pcm_ops snd_intel8x0m_playback_ops = { .open = snd_intel8x0m_playback_open, .close = snd_intel8x0m_playback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intel8x0_hw_params, .hw_free = snd_intel8x0_hw_free, .prepare = snd_intel8x0m_pcm_prepare, .trigger = snd_intel8x0_pcm_trigger, .pointer = snd_intel8x0_pcm_pointer, }; static struct snd_pcm_ops snd_intel8x0m_capture_ops = { .open = snd_intel8x0m_capture_open, .close = snd_intel8x0m_capture_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intel8x0_hw_params, .hw_free = snd_intel8x0_hw_free, .prepare = snd_intel8x0m_pcm_prepare, .trigger = snd_intel8x0_pcm_trigger, .pointer = snd_intel8x0_pcm_pointer, }; struct ich_pcm_table { char *suffix; struct snd_pcm_ops *playback_ops; struct snd_pcm_ops *capture_ops; size_t prealloc_size; size_t prealloc_max_size; int ac97_idx; }; static int __devinit snd_intel8x0_pcm1(struct intel8x0m *chip, int device, struct ich_pcm_table *rec) { struct snd_pcm *pcm; int err; char name[32]; if (rec->suffix) sprintf(name, "Intel ICH - %s", rec->suffix); else strcpy(name, "Intel ICH"); err = snd_pcm_new(chip->card, name, device, rec->playback_ops ? 1 : 0, rec->capture_ops ? 1 : 0, &pcm); if (err < 0) return err; if (rec->playback_ops) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops); if (rec->capture_ops) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops); pcm->private_data = chip; pcm->info_flags = 0; pcm->dev_class = SNDRV_PCM_CLASS_MODEM; if (rec->suffix) sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix); else strcpy(pcm->name, chip->card->shortname); chip->pcm[device] = pcm; snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), rec->prealloc_size, rec->prealloc_max_size); return 0; } static struct ich_pcm_table intel_pcms[] __devinitdata = { { .suffix = "Modem", .playback_ops = &snd_intel8x0m_playback_ops, .capture_ops = &snd_intel8x0m_capture_ops, .prealloc_size = 32 * 1024, .prealloc_max_size = 64 * 1024, }, }; static int __devinit snd_intel8x0_pcm(struct intel8x0m *chip) { int i, tblsize, device, err; struct ich_pcm_table *tbl, *rec; #if 1 tbl = intel_pcms; tblsize = 1; #else switch (chip->device_type) { case DEVICE_NFORCE: tbl = nforce_pcms; tblsize = ARRAY_SIZE(nforce_pcms); break; case DEVICE_ALI: tbl = ali_pcms; tblsize = ARRAY_SIZE(ali_pcms); break; default: tbl = intel_pcms; tblsize = 2; break; } #endif device = 0; for (i = 0; i < tblsize; i++) { rec = tbl + i; if (i > 0 && rec->ac97_idx) { /* activate PCM only when associated AC'97 codec */ if (! chip->ichd[rec->ac97_idx].ac97) continue; } err = snd_intel8x0_pcm1(chip, device, rec); if (err < 0) return err; device++; } chip->pcm_devs = device; return 0; } /* * Mixer part */ static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus) { struct intel8x0m *chip = bus->private_data; chip->ac97_bus = NULL; } static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97) { struct intel8x0m *chip = ac97->private_data; chip->ac97 = NULL; } static int __devinit snd_intel8x0_mixer(struct intel8x0m *chip, int ac97_clock) { struct snd_ac97_bus *pbus; struct snd_ac97_template ac97; struct snd_ac97 *x97; int err; unsigned int glob_sta = 0; static struct snd_ac97_bus_ops ops = { .write = snd_intel8x0_codec_write, .read = snd_intel8x0_codec_read, }; chip->in_ac97_init = 1; memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; ac97.private_free = snd_intel8x0_mixer_free_ac97; ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE; glob_sta = igetdword(chip, ICHREG(GLOB_STA)); if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0) goto __err; pbus->private_free = snd_intel8x0_mixer_free_ac97_bus; if (ac97_clock >= 8000 && ac97_clock <= 48000) pbus->clock = ac97_clock; chip->ac97_bus = pbus; ac97.pci = chip->pci; ac97.num = glob_sta & ICH_SCR ? 1 : 0; if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) { snd_printk(KERN_ERR "Unable to initialize codec #%d\n", ac97.num); if (ac97.num == 0) goto __err; return err; } chip->ac97 = x97; if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) { chip->ichd[ICHD_MDMIN].ac97 = x97; chip->ichd[ICHD_MDMOUT].ac97 = x97; } chip->in_ac97_init = 0; return 0; __err: /* clear the cold-reset bit for the next chance */ if (chip->device_type != DEVICE_ALI) iputdword(chip, ICHREG(GLOB_CNT), igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD); return err; } /* * */ static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing) { unsigned long end_time; unsigned int cnt, status, nstatus; /* put logic to right state */ /* first clear status bits */ status = ICH_RCS | ICH_MIINT | ICH_MOINT; cnt = igetdword(chip, ICHREG(GLOB_STA)); iputdword(chip, ICHREG(GLOB_STA), cnt & status); /* ACLink on, 2 channels */ cnt = igetdword(chip, ICHREG(GLOB_CNT)); cnt &= ~(ICH_ACLINK); /* finish cold or do warm reset */ cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM; iputdword(chip, ICHREG(GLOB_CNT), cnt); end_time = (jiffies + (HZ / 4)) + 1; do { if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0) goto __ok; schedule_timeout_uninterruptible(1); } while (time_after_eq(end_time, jiffies)); snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n", igetdword(chip, ICHREG(GLOB_CNT))); return -EIO; __ok: if (probing) { /* wait for any codec ready status. * Once it becomes ready it should remain ready * as long as we do not disable the ac97 link. */ end_time = jiffies + HZ; do { status = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR); if (status) break; schedule_timeout_uninterruptible(1); } while (time_after_eq(end_time, jiffies)); if (! status) { /* no codec is found */ snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n", igetdword(chip, ICHREG(GLOB_STA))); return -EIO; } /* up to two codecs (modem cannot be tertiary with ICH4) */ nstatus = ICH_PCR | ICH_SCR; /* wait for other codecs ready status. */ end_time = jiffies + HZ / 4; while (status != nstatus && time_after_eq(end_time, jiffies)) { schedule_timeout_uninterruptible(1); status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus; } } else { /* resume phase */ status = 0; if (chip->ac97) status |= get_ich_codec_bit(chip, chip->ac97->num); /* wait until all the probed codecs are ready */ end_time = jiffies + HZ; do { nstatus = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR); if (status == nstatus) break; schedule_timeout_uninterruptible(1); } while (time_after_eq(end_time, jiffies)); } if (chip->device_type == DEVICE_SIS) { /* unmute the output on SIS7012 */ iputword(chip, 0x4c, igetword(chip, 0x4c) | 1); } return 0; } static int snd_intel8x0_chip_init(struct intel8x0m *chip, int probing) { unsigned int i; int err; if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0) return err; iagetword(chip, 0); /* clear semaphore flag */ /* disable interrupts */ for (i = 0; i < chip->bdbars_count; i++) iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00); /* reset channels */ for (i = 0; i < chip->bdbars_count; i++) iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS); /* initialize Buffer Descriptor Lists */ for (i = 0; i < chip->bdbars_count; i++) iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr); return 0; } static int snd_intel8x0_free(struct intel8x0m *chip) { unsigned int i; if (chip->irq < 0) goto __hw_end; /* disable interrupts */ for (i = 0; i < chip->bdbars_count; i++) iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00); /* reset channels */ for (i = 0; i < chip->bdbars_count; i++) iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS); __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); if (chip->bdbars.area) snd_dma_free_pages(&chip->bdbars); if (chip->addr) pci_iounmap(chip->pci, chip->addr); if (chip->bmaddr) pci_iounmap(chip->pci, chip->bmaddr); pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); return 0; } #ifdef CONFIG_PM /* * power management */ static int intel8x0m_suspend(struct pci_dev *pci, pm_message_t state) { struct snd_card *card = pci_get_drvdata(pci); struct intel8x0m *chip = card->private_data; int i; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); for (i = 0; i < chip->pcm_devs; i++) snd_pcm_suspend_all(chip->pcm[i]); snd_ac97_suspend(chip->ac97); if (chip->irq >= 0) { free_irq(chip->irq, chip); chip->irq = -1; } pci_disable_device(pci); pci_save_state(pci); pci_set_power_state(pci, pci_choose_state(pci, state)); return 0; } static int intel8x0m_resume(struct pci_dev *pci) { struct snd_card *card = pci_get_drvdata(pci); struct intel8x0m *chip = card->private_data; pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); if (pci_enable_device(pci) < 0) { printk(KERN_ERR "intel8x0m: pci_enable_device failed, " "disabling device\n"); snd_card_disconnect(card); return -EIO; } pci_set_master(pci); if (request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_SHARED, card->shortname, chip)) { printk(KERN_ERR "intel8x0m: unable to grab IRQ %d, " "disabling device\n", pci->irq); snd_card_disconnect(card); return -EIO; } chip->irq = pci->irq; snd_intel8x0_chip_init(chip, 0); snd_ac97_resume(chip->ac97); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif /* CONFIG_PM */ #ifdef CONFIG_PROC_FS static void snd_intel8x0m_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer) { struct intel8x0m *chip = entry->private_data; unsigned int tmp; snd_iprintf(buffer, "Intel8x0m\n\n"); if (chip->device_type == DEVICE_ALI) return; tmp = igetdword(chip, ICHREG(GLOB_STA)); snd_iprintf(buffer, "Global control : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT))); snd_iprintf(buffer, "Global status : 0x%08x\n", tmp); snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n", tmp & ICH_PCR ? " primary" : "", tmp & ICH_SCR ? " secondary" : "", tmp & ICH_TCR ? " tertiary" : "", (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : ""); } static void __devinit snd_intel8x0m_proc_init(struct intel8x0m * chip) { struct snd_info_entry *entry; if (! snd_card_proc_new(chip->card, "intel8x0m", &entry)) snd_info_set_text_ops(entry, chip, snd_intel8x0m_proc_read); } #else /* !CONFIG_PROC_FS */ #define snd_intel8x0m_proc_init(chip) #endif /* CONFIG_PROC_FS */ static int snd_intel8x0_dev_free(struct snd_device *device) { struct intel8x0m *chip = device->device_data; return snd_intel8x0_free(chip); } struct ich_reg_info { unsigned int int_sta_mask; unsigned int offset; }; static int __devinit snd_intel8x0m_create(struct snd_card *card, struct pci_dev *pci, unsigned long device_type, struct intel8x0m ** r_intel8x0) { struct intel8x0m *chip; int err; unsigned int i; unsigned int int_sta_masks; struct ichdev *ichdev; static struct snd_device_ops ops = { .dev_free = snd_intel8x0_dev_free, }; static struct ich_reg_info intel_regs[2] = { { ICH_MIINT, 0 }, { ICH_MOINT, 0x10 }, }; struct ich_reg_info *tbl; *r_intel8x0 = NULL; if ((err = pci_enable_device(pci)) < 0) return err; chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) { pci_disable_device(pci); return -ENOMEM; } spin_lock_init(&chip->reg_lock); chip->device_type = device_type; chip->card = card; chip->pci = pci; chip->irq = -1; if ((err = pci_request_regions(pci, card->shortname)) < 0) { kfree(chip); pci_disable_device(pci); return err; } if (device_type == DEVICE_ALI) { /* ALI5455 has no ac97 region */ chip->bmaddr = pci_iomap(pci, 0, 0); goto port_inited; } if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */ chip->addr = pci_iomap(pci, 2, 0); else chip->addr = pci_iomap(pci, 0, 0); if (!chip->addr) { snd_printk(KERN_ERR "AC'97 space ioremap problem\n"); snd_intel8x0_free(chip); return -EIO; } if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */ chip->bmaddr = pci_iomap(pci, 3, 0); else chip->bmaddr = pci_iomap(pci, 1, 0); if (!chip->bmaddr) { snd_printk(KERN_ERR "Controller space ioremap problem\n"); snd_intel8x0_free(chip); return -EIO; } port_inited: if (request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_SHARED, card->shortname, chip)) { snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); snd_intel8x0_free(chip); return -EBUSY; } chip->irq = pci->irq; pci_set_master(pci); synchronize_irq(chip->irq); /* initialize offsets */ chip->bdbars_count = 2; tbl = intel_regs; for (i = 0; i < chip->bdbars_count; i++) { ichdev = &chip->ichd[i]; ichdev->ichd = i; ichdev->reg_offset = tbl[i].offset; ichdev->int_sta_mask = tbl[i].int_sta_mask; if (device_type == DEVICE_SIS) { /* SiS 7013 swaps the registers */ ichdev->roff_sr = ICH_REG_OFF_PICB; ichdev->roff_picb = ICH_REG_OFF_SR; } else { ichdev->roff_sr = ICH_REG_OFF_SR; ichdev->roff_picb = ICH_REG_OFF_PICB; } if (device_type == DEVICE_ALI) ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10; } /* SIS7013 handles the pcm data in bytes, others are in words */ chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1; /* allocate buffer descriptor lists */ /* the start of each lists must be aligned to 8 bytes */ if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2, &chip->bdbars) < 0) { snd_intel8x0_free(chip); return -ENOMEM; } /* tables must be aligned to 8 bytes here, but the kernel pages are much bigger, so we don't care (on i386) */ int_sta_masks = 0; for (i = 0; i < chip->bdbars_count; i++) { ichdev = &chip->ichd[i]; ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2); ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2); int_sta_masks |= ichdev->int_sta_mask; } chip->int_sta_reg = ICH_REG_GLOB_STA; chip->int_sta_mask = int_sta_masks; if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) { snd_intel8x0_free(chip); return err; } if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_intel8x0_free(chip); return err; } snd_card_set_dev(card, &pci->dev); *r_intel8x0 = chip; return 0; } static struct shortname_table { unsigned int id; const char *s; } shortnames[] __devinitdata = { { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" }, { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" }, { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" }, { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" }, { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" }, { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" }, { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" }, { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" }, { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" }, { 0x7446, "AMD AMD768" }, { PCI_DEVICE_ID_SI_7013, "SiS SI7013" }, { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" }, { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" }, { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" }, { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" }, #if 0 { 0x5455, "ALi M5455" }, { 0x746d, "AMD AMD8111" }, #endif { 0 }, }; static int __devinit snd_intel8x0m_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { struct snd_card *card; struct intel8x0m *chip; int err; struct shortname_table *name; card = snd_card_new(index, id, THIS_MODULE, 0); if (card == NULL) return -ENOMEM; strcpy(card->driver, "ICH-MODEM"); strcpy(card->shortname, "Intel ICH"); for (name = shortnames; name->id; name++) { if (pci->device == name->id) { strcpy(card->shortname, name->s); break; } } strcat(card->shortname," Modem"); if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) { snd_card_free(card); return err; } card->private_data = chip; if ((err = snd_intel8x0_mixer(chip, ac97_clock)) < 0) { snd_card_free(card); return err; } if ((err = snd_intel8x0_pcm(chip)) < 0) { snd_card_free(card); return err; } snd_intel8x0m_proc_init(chip); sprintf(card->longname, "%s at irq %i", card->shortname, chip->irq); if ((err = snd_card_register(card)) < 0) { snd_card_free(card); return err; } pci_set_drvdata(pci, card); return 0; } static void __devexit snd_intel8x0m_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); } static struct pci_driver driver = { .name = "Intel ICH Modem", .id_table = snd_intel8x0m_ids, .probe = snd_intel8x0m_probe, .remove = __devexit_p(snd_intel8x0m_remove), #ifdef CONFIG_PM .suspend = intel8x0m_suspend, .resume = intel8x0m_resume, #endif }; static int __init alsa_card_intel8x0m_init(void) { return pci_register_driver(&driver); } static void __exit alsa_card_intel8x0m_exit(void) { pci_unregister_driver(&driver); } module_init(alsa_card_intel8x0m_init) module_exit(alsa_card_intel8x0m_exit)